Where do Grandmasters play Chess? - Lichess vs. Chess.com • page 4/15 • Community Blog Discussions • lichess.org

Chess_Training_2021

premoving on chess.com costs .1 seconds, on lichess it ́s basically 0, no surprise it feels faster to play on lichess, cuz it is

d2inventory

I cross checked the data and got quite different results.

I arbitrarily picked 2019-10 and grepped the lichess database for GM titled games with 16 lines before that to get the respective names then uniquely sorted those names. The result is 194 GM accounts but in the chart there are about 280

This is my list: https://pastebin.com/raw/zFKds5sU

As for chesscom, I downloaded the GM list using the API https://api.chess.com/pub/titled/GM and then downloaded the 2019-10 archive for all of them.
Using these archives I checked which GM played rated chess games and removed all which had none.
That left me with a list of 650 accounts: https://pastebin.com/raw/Zj6HpDth

But since this list also contains players like gurelediz who is only 16 years old so most definitely wasn't a GM in 2019, I then checked how many players in the list who are GMs now weren't in 2019. This isn't as trivial and I used a chesscom account to fide id mapping from titled tuesday games in 2023 to roughly check it. Only about half the accounts could be resolved to a fide id.

Out of this half, 98 did not have a GM title in 2019-10 according to the FIDE rating list of that month.

If we extrapolate that, we get about 450 GM accounts in 2019-10 a lot less than the aprox. 620 in the article. Even if I only remove the 98 we can be sure weren't GMs in 2019-10 it's a lot less.

Here the list with FIDE id and title for the 336 accounts that had a FIDE id: https://pastebin.com/raw/ebMNXEca

I'm wondering where this rather large difference is coming from.

I cross checked the data and got quite different results. I arbitrarily picked 2019-10 and grepped the lichess database for GM titled games with 16 lines before that to get the respective names then uniquely sorted those names. The result is 194 GM accounts but in the chart there are about 280 This is my list: https://pastebin.com/raw/zFKds5sU As for chesscom, I downloaded the GM list using the API https://api.chess.com/pub/titled/GM and then downloaded the 2019-10 archive for all of them. Using these archives I checked which GM played rated chess games and removed all which had none. That left me with a list of 650 accounts: https://pastebin.com/raw/Zj6HpDth But since this list also contains players like gurelediz who is only 16 years old so most definitely wasn't a GM in 2019, I then checked how many players in the list who are GMs now weren't in 2019. This isn't as trivial and I used a chesscom account to fide id mapping from titled tuesday games in 2023 to roughly check it. Only about half the accounts could be resolved to a fide id. Out of this half, 98 did not have a GM title in 2019-10 according to the FIDE rating list of that month. If we extrapolate that, we get about 450 GM accounts in 2019-10 a lot less than the aprox. 620 in the article. Even if I only remove the 98 we can be sure weren't GMs in 2019-10 it's a lot less. Here the list with FIDE id and title for the 336 accounts that had a FIDE id: https://pastebin.com/raw/ebMNXEca I'm wondering where this rather large difference is coming from.

ChessMonitor_Stats

Thanks for double checking. The large differences are coming from looking too deep into the past. If you run the same experiment again in a year, you will notice that the numbers (for the same month on Chess.com) will be different. Some GMs close their accounts, some play for some time without title verification. So looking back into the past is rather tricky.

You also need to consider that many GMs have multiple (verified) accounts but still like to remain anonymous. That's why the approach of mapping to FIDE ID won't work.

That said, I also had to rely on recent account information in many cases (in addition to the historical data I have). So that basically means I consider the "current GM status" in most cases instead of the past GM status at each point in time. So it's basically a question of where today's GMs have played in the past. I added this information to the article. Thanks for pointing it out.

Thanks for double checking. The large differences are coming from looking too deep into the past. If you run the same experiment again in a year, you will notice that the numbers (for the same month on Chess.com) will be different. Some GMs close their accounts, some play for some time without title verification. So looking back into the past is rather tricky. You also need to consider that many GMs have multiple (verified) accounts but still like to remain anonymous. That's why the approach of mapping to FIDE ID won't work. That said, I also had to rely on recent account information in many cases (in addition to the historical data I have). So that basically means I consider the "current GM status" in most cases instead of the past GM status at each point in time. So it's basically a question of where today's GMs have played in the past. I added this information to the article. Thanks for pointing it out.

kadamriyansh29

I would just love to spit on chess.com

kadamriyansh29

@kadamriyansh29 said in #35:

I would just love to spit on chess.com
jyjjywjj

@kadamriyansh29 said in #35: > I would just love to spit on chess.com jyjjywjj

Himothyplayed

Chess.com is good but I like lichess

pawngrid

maybe chess.com just has the more valuable domain name and is just further up the google search results, and GMs are no different than the masses in picking it for those reasons

Himothyplayed

Chess.com just has a name and a big group of developers lichess has a small group of contributors that make the game good and fun

Josh1_Chess

So good Blog buddy.

Your network blocks the Lichess assets!

Where do Grandmasters play Chess? - Lichess vs. Chess.com